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Home > Press > Alnylam and MIT Collaborators Publish Data on Novel Lipid Nanoparticles for Systemic Delivery of RNAi Therapeutics – New Pre-clinical Findings Demonstrate that Binary Combinations of Novel “Lipidoids” Result in Synergistic Effects on Target Gene Silencing –

Abstract:
Alnylam Pharmaceuticals, Inc. (Nasdaq: ALNY), a leading RNAi therapeutics company, together with collaborators at the Massachusetts Institute of Technology (MIT), announced today the publication of new data describing a novel approach for systemic delivery of RNAi therapeutics using synergistic combinations of novel lipid-like materials called "lipidoids."

Alnylam and MIT Collaborators Publish Data on Novel Lipid Nanoparticles for Systemic Delivery of RNAi Therapeutics – New Pre-clinical Findings Demonstrate that Binary Combinations of Novel “Lipidoids” Result in Synergistic Effects on Target Gene Silencing –

Cambridge, MA | Posted on July 19th, 2011

"These new data reflect our continued and broad-based commitment to developing novel approaches for the systemic delivery of RNAi therapeutics. In working with world-renowned academic leaders in the field of drug delivery at MIT, we continue to expand our understanding and knowledge about innovative delivery approaches," said Kevin Fitzgerald, Ph.D., Senior Director of Research at Alnylam. "These recently published data show that binary combinations of specific lipidoids can result in optimized lipid nanoparticle formulations with synergistic siRNA delivery properties."

"Our long-standing collaborative efforts with Alnylam continue to be very productive as evidenced by this current publication, marking the 12th peer-reviewed paper we have co-authored together," said Dan Anderson, Ph.D., of the David H. Koch Institute for Integrative Research at MIT. "As we continue in these joint efforts, we see boundless opportunities for novel delivery strategies for RNAi therapeutics and we look forward to continued progress."

The new research results, which were published in the journal Molecular Therapy (Whitehead et al., MolTher, 2011 July 12, doi:10.1038/mt.2011.141), established that binary combinations of lipidoids can be formulated together in a single lipid nanoparticle (LNP) formulation to achieve synergistic gene silencing effects both in vitro and in vivo. In the current study, more than 3,500 novel LNP formulations were prepared and then evaluated for effects on gene silencing. Results demonstrated achievement of synergistic gene silencing when utilizing materials that, when combined, mediated both efficient cellular uptake and productive endosomal escape. The pre-clinical data showed that ineffective single lipidoids could be formulated together to induce robust silencing of the luciferase mRNA in vitro and the Factor VII mRNA in vivo. Importantly, it is anticipated that this binary formulation strategy could be applicable to any siRNA delivery material in any target cell population that utilizes combinations of unique components to mediate distinct steps in the delivery process, for example lipids, polymers, and siRNA conjugates.

About RNA Interference (RNAi)

RNAi (RNA interference) is a revolution in biology, representing a breakthrough in understanding how genes are turned on and off in cells, and a completely new approach to drug discovery and development. Its discovery has been heralded as "a major scientific breakthrough that happens once every decade or so," and represents one of the most promising and rapidly advancing frontiers in biology and drug discovery today which was awarded the 2006 Nobel Prize for Physiology or Medicine. RNAi is a natural process of gene silencing that occurs in organisms ranging from plants to mammals. By harnessing the natural biological process of RNAi occurring in our cells, the creation of a major new class of medicines, known as RNAi therapeutics, is on the horizon. Small interfering RNAs (siRNAs), the molecules that mediate RNAi and comprise Alnylam's RNAi therapeutic platform, target the cause of diseases by potently silencing specific mRNAs, thereby preventing disease-causing proteins from being made. RNAi therapeutics have the potential to treat disease and help patients in a fundamentally new way.

####

About Alnylam Pharmaceuticals, Inc.
Alnylam is a biopharmaceutical company developing novel therapeutics based on RNA interference, or RNAi. The company is leading the translation of RNAi as a new class of innovative medicines with a core focus on RNAi therapeutics for the treatment of genetically defined diseases, including ALN-TTR for the treatment of transthyretin-mediated amyloidosis (ATTR), ALN-PCS for the treatment of severe hypercholesterolemia, and ALN-HPN for the treatment of refractory anemia. As part of its “Alnylam 5x15TM” strategy, the company expects to have five RNAi therapeutic products for genetically defined diseases in advanced stages of clinical development by the end of 2015. Alnylam has additional partner-based programs in clinical or development stages, including ALN-RSV01 for the treatment of respiratory syncytial virus (RSV) infection, ALN-VSP for the treatment of liver cancers, and ALN-HTT for the treatment of Huntington’s disease. The company’s leadership position on RNAi therapeutics and intellectual property have enabled it to form major alliances with leading companies including Merck, Medtronic, Novartis, Biogen Idec, Roche, Takeda, Kyowa Hakko Kirin, and Cubist. In addition, Alnylam and Isis co-founded Regulus Therapeutics Inc., a company focused on discovery, development, and commercialization of microRNA therapeutics; Regulus has formed partnerships with GlaxoSmithKline and Sanofi. Alnylam has also formed Alnylam Biotherapeutics, a division of the company focused on the development of RNAi technologies for application in biologics manufacturing, including recombinant proteins and monoclonal antibodies. Alnylam scientists and collaborators have published their research on RNAi therapeutics in over 100 peer-reviewed papers, including many in the world’s top scientific journals such as Nature, Nature Medicine, Nature Biotechnology, and Cell. Founded in 2002, Alnylam maintains headquarters in Cambridge, Massachusetts.

Alnylam Forward-Looking Statements

Various statements in this release concerning Alnylam’s future expectations, plans and prospects, including without limitation, statements regarding Alnylam’s expectations with respect to its “Alnylam 5x15” product strategy, and Alnylam’s views with respect to the potential for systemic delivery of RNAi therapeutics using synergistic combinations of novel lipid-like materials called “lipidoids,” constitute forward-looking statements for the purposes of the safe harbor provisions under The Private Securities Litigation Reform Act of 1995. Actual results may differ materially from those indicated by these forward-looking statements as a result of various important factors, including, without limitation, Alnylam’s ability to discover and develop novel delivery approaches and novel drug candidates, successfully demonstrate the efficacy and safety of its drug candidates in human clinical trials and establish and maintain strategic business alliances and new business initiatives, as well as those risks more fully discussed in the “Risk Factors” section of its most recent annual report on Form 10-Q on file with the Securities and Exchange Commission. In addition, any forward-looking statements represent Alnylam's views only as of today and should not be relied upon as representing its views as of any subsequent date. Alnylam does not assume any obligation to update any forward-looking statements.

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Contacts:
Alnylam Pharmaceuticals, Inc.
Cynthia Clayton, 617-551-8207
Senior Director, Investor Relations and
Corporate Communications
or
Media:
Spectrum
Amanda Sellers, 202-955-6222 x2597

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